COSTWAY Large Play Mat for Kids Picnics, Beach Trips & Toddler Floor Time at Home
COSTWAY Large Play Mat for Kids Picnics, Beach Trips & Toddler Floor Time at Home
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Why you'll love it
- Spacious 80"x80" surface fits 6-8 sitters so the whole family shares one blanket instead of crowding multiple towels
- PEVA waterproof backing lets users sit on damp grass or wet sand without getting soaked
- Sandproof surface wipes clean in seconds, eliminating gritty post-beach cleanup
- 3-layer construction with foam padding prevents pressure points during long picnic lounging
- Soft polyester top layer is gentle enough for a baby to nap on directly
- Rolls into a 16-inch compact cylinder with an adjustable carrying strap for hands-free transport
Perfect for
- Large group family picnic on wet grass or sand
- Beach lounging with a waterproof, sand-shake-off base
- Outdoor concert blanket for couples or small groups
- Stadium bleacher seat pad replacement
- Indoor floor play mat for babies and toddlers

Sapsisel is an outdoors brand dedicated to creating outdoor products that blend functionality with style, to enhance your outdoor experience. Our goal is to build the connection between people and the beautiful moments that make life truly memorable. Whether you're lounging on the beach, picnicking in the park, or hiking in the mountains, Sapsisel is the perfect companion that provides both comfort and happiness to you and your loved ones.



SAPSISEL Picnic blanket
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Great Family Choice
Sapsisel picnic blanket is an ideal choice for family use and friend gathering. It is spacious enough for everyone in your group to sit on, including any children or pets. There are two size options to satisfy your different needs.

Ideal Trip Partner
What makes picnicking so appealing is spending time outdoors with friends and families to enjoy sweet breezes and sunshine, grassy knolls, and sandy beaches. Whether you’re meeting friends in the park or heading to the beach, this comfortable and waterproof picnic blanket is your must-have trip partner.
3-Layer Design
The waterproof material on the bottom, with a layer of padding in between to prevent any Princess and the Pea situations in the park. It can conquer grass, sand, or any other area that you might want to sit in, masking the feeling of rocks or bumpy surfaces underneath.
Comfort Experience
The blanket is cozy and feels similar to a bed comforter, thanks to its soft and comfortable fiber front and the thick layer of foam insulation, bringing you an excellent outdoor experience.
Foldability and Portability
The picnic blanket can be folded to the size of a small tote that won’t take up too much storage room and comes with a sturdy carry handle. Coupled with lightweight design, it is easy and convenient to carry around to any destination.
Waterproof and Sandproof
Thanks to its PEVA waterproof backing material, the picnic blanket is designed to keep out the moisture and make your seat more comfortable, leaving you no worry of soggy sitting spot. The dirt and sand will also easily fall off the blanket after just a few shakes.
Use It Anywhere
Whether you are going for a picnic, camping, hiking, climbing, beach, grass, park, or outdoor concert, we believe this outdoor blanket is a high-quality choice that serves you well on any outdoor excursion.
Product Information
80” x 80” Extra Large: With 80” long and 80” width, the picnic blanket can allow 6-8 persons to sit on, or 4 persons to lie on. It’s large enough for family use or picnic with several friends. And it’s just a 16 inches long cylinder with a 9-inch diameter when you roll it up.
Waterproof and Sandproof Picnic blanket: The picnic blanket is great choice for beach, park, or bleachers thanks to its PEVA waterproof and sandproof backing. You can easily shake and wipe off dirt, wet grass and beach sand. The picnic blanket is designed to keep out the moisture and make you seat more comfortable.
3 Layers Comfortable Structure: The Polyester fiber on the top, foam in the middle, and a waterproof layer PEVA on the bottom. The top layer is soft enough to let you comfortably nap in the sun and gentle enough for a baby to lie. With the foam in the middle, you won’t feel uncomfortable even if you picnic for a long time. The waterproof bottom resists dirt, sand and water.
Lightweight and Foldable: The picnic blanket has 7 layers doesn’t mean it’s heavy—it has a lightweight design, so it’s designed for carry around. This park blanket can be packed as a classic roll-up style, you can pack it easily with the adjustable belt which comes with the picnic blanket. The belt also has a hand strap. It’ll be easy to take this blanket anywhere.''
Designed for Outdoor and Indoor Use: It's suitable for going out and relax on the Sapsisel picnic blanket, which offers the best combination of comfort, durability and compactness. Designed for picnic, camping, hiking, climbing, beach, grass, park, outdoor concert, and it’s also great to use as playing mat for kids indoor and outdoor.
Weave Type: Knitted
Pile Height: Medium Pile
Construction Type: Machine Made
Indoor Outdoor Usage: Outdoor
Other Special Features of the Product: Waterproof
Water Resistance Level: Waterproof
Model Name: 01
Item Type Name: All-Purpose Machine Washable Stadium and Picnic & Beach Blanket
Color: Blue & White
Theme: Picnic
Item Shape: Rectangular
Rug Form Type: Picnic Blanket
Style Name: Compact
Size: 6'7" x 6'7" (Rectangular)
Item Weight: 2.2 pounds
Item Dimensions L x W: 79"L x 79"W
Number of Pieces: 1
Material Type: Top - Polyester ; Middle - Foam ; Bottom - PEVA
Back Material Type: Polyester
Product Care Instructions: Hand Wash Only
Frequently Asked Questions
Is the surface safe and soft enough for a baby to nap on directly?
Yes. The top layer is a soft polyester fabric that is gentle against delicate skin, and the foam core provides cushioned support. Many parents use it as a clean napping surface at the park or beach.
Can I use this as a play mat in my child's nursery or playroom?
Absolutely. The 80x80 size gives toddlers plenty of room to crawl, sit, and play with toys, and the waterproof bottom protects hardwood, carpet, or tile from spills and accidents.
Does it contain any harmful chemicals that could affect my child?
The blanket uses a PEVA backing rather than PVC, and the materials are chosen to be family-friendly. It is designed for direct contact with babies and toddlers during regular use.
If my kid spills juice or food, is it easy to clean?
Yes. The waterproof backing prevents liquids from soaking through to your floor, and the top layer wipes clean with a damp cloth for everyday messes, or you can machine wash the whole blanket.
Will foam padding be thick enough to protect my toddler from a hard floor?
The foam core adds noticeable cushion compared to a thin sheet or towel, making playtime more comfortable on hardwood, tile, or concrete basement floors.
Is this big enough for a playdate with multiple kids?
Yes, the 80x80 surface easily fits 4 to 6 young children with room for toys, books, and snacks in the center for organized playdates.
Can I use it for tummy time with my infant?
Many parents do. The soft, cleanable surface provides a defined, cushioned area for supervised tummy time at home or when visiting a park.
Will my child be safe on damp grass during a family park outing?
Yes. The waterproof PEVA backing blocks moisture from wet grass, so your child stays dry during outdoor play even on dewy mornings or after light rain.
How is this different from a typical kids' foam play mat?
Unlike interlocking foam tiles, this blanket is a single portable piece that rolls up, travels to the park or beach, and is machine-washable rather than requiring individual tile cleaning.
Is this safer or cleaner than letting my child play on a public picnic table?
Yes. The blanket creates a clean, defined, cushioned play zone on grass or sand, lifting your child off hard public surfaces and away from table-top germs or splinters.
How does this compare to a pack-and-play or portable crib for outings?
A pack-and-play is enclosed but bulky and heavy. This blanket is a flat play surface that is lighter, easier to carry, and large enough for active toddlers who no longer need enclosure.
Could the foam core be a safety concern if the blanket gets torn?
The 3-layer construction is bonded and durable under normal use. If the blanket is ever damaged, stop using it for child contact, but the materials are designed to resist tearing during regular play.
Is the surface texture slippery for a baby learning to crawl?
No, the polyester top has enough texture to give crawling babies traction, unlike smooth plastic or vinyl mats where little hands and knees can slide.
Can I wash it after a messy daycare-style play session?
Yes. The blanket is machine-washable, so after a day of finger paints, snacks, and outdoor dirt, you can toss it in the wash and have it fresh for the next playdate.
How do I clean and wash this picnic blanket?
The blanket is machine-washable on a gentle cycle with mild detergent. For small messes, you can wipe the top with a damp cloth and shake sand off the surface. Hang dry or tumble dry on low heat to preserve the foam core and waterproof backing.
How do I roll it up properly for storage and transport?
Lay the blanket flat with the printed side down. Fold it in half or thirds lengthwise, then roll tightly from one end to the other. The attached adjustable strap wraps around the roll and buckles to keep it compact at 16 inches long.
How long does it take to set up and pack away?
Setup takes under a minute. Just unroll the blanket, lay it flat, and adjust position. Pack-up is similarly fast: shake off debris, roll tightly, and secure the strap. Total pack-up time is typically under 90 seconds.
Does it work on grass, sand, concrete, and wooden decks?
Yes. The PEVA waterproof backing performs well on all four surfaces. On grass and sand it blocks ground moisture, on concrete it provides a clean padded barrier, and on wood decks it protects against spills and stains.
Can it be used as a ground cover under a tent or as a sleeping pad?
It works as a ground cover or tent footprint to add insulation and moisture protection under sleeping bags, though it is not padded enough to replace a dedicated sleeping pad for backpacking.
What is included in the box when I order this blanket?
You receive one picnic blanket rolled and strapped in its compact carry configuration, with the integrated adjustable shoulder strap already attached. No additional accessories or separate carrying bags are required.
Is the blanket safe for kids and pets to use directly?
Yes. The materials are chosen to be family-friendly, and the soft polyester top is gentle against skin. The PEVA backing is used in place of PVC, and the blanket is safe for direct contact during normal use.
Will the waterproof backing peel apart from the foam layer over time?
No. The 3-layer bonded construction is designed so the layers stay integrated through regular folding, rolling, washing, and outdoor use. With normal care, the layers remain securely bonded for years.
What is the difference between a picnic blanket, a beach blanket, and a camping blanket?
Picnic blankets are typically designed for grass and short outings, beach blankets focus on sand resistance and water protection, and camping blankets often prioritize insulation. This 3-in-1 design combines waterproofing, sand resistance, padding, and portability, so it works across all three categories in a single product.

