This sofa with proper height will provide you a comfort support and lift you from sand, branch or gravel, and built-in pillow so you can have a good rest on it. Simply whisk the sofa trough the air to inflate, and the little trick is that you need to trap air by closing the opening before the end of each movement and keep the mouth closed until you begin the next movement. 
Features:
Whisk through the wind to inflate or use a mini air blower(not include) to help full inflated when it's not very windy.
86x31x21, built-in pillow, long and wide enough for an adult to lie on.
No problem for people up to 440lb.
Proper height to lift you from sand, branch or gravel for a good rest.
Built-in loop at bottom so you can use the stakes to secure the coach in place.
Easy to deflate and packed in a pouch for convenient carry.
Specification: 
Material: Polyester  
Color: Black / Orange / Blue / Green (optional)
Inflated size: 220 * 80 * 54cm / 86 * 31 * 21in 
Packed size: 32 * 22 * 14cm / 12.5 * 8.6 * 5.5in 
Bearing capacity: 200kg / 440lb
Package weight: 1283g / 2.8lb
Package List: 
1 * Inflatable Lounger 
1 * Stake
2 * Patches 
Note: The inflate size may be a little different since different state of inflation, please understand.