Etekcity via Amazon offers its Etekcity Twin Air Mattress with Rechargeable Air Pump for $45.99. Coupon code "P27UWHEX" drops it to $39.99. With free shipping, that's $30 off list and the lowest price we could find. It supports up to 450 lbs., measures 75" x 39" x 9" when inflated, and includes a rechargeable air pump and carry bag. Deal ends February 20.

Note: This is not a giant ice cream sandwich.