Although the best mattresses feel as soft as clouds, the worst mattresses are clouds that send sleepers plummeting back to Earth. Rest on firmer billows with today's Groupon: for $50, you get $200 toward a mattress set at The Sleep Better Store.

The Sleep Better Store's bedding specialists help customers select the ideal cushioning for extended catnaps and brief hibernations. The extensive inventory includes slumber systems by Sealy, Serta, AngelBeds, and The Sleep Better Store’s own brand. Customers can peruse memory-foam mattresses by AngelBeds ($599+), as well as The Sleep Better Store's Number Series adjustable-firmness air sleep mattresses ($499+), which are designed to provide extra comfort by granting customers a feeling known only to those who have slept on the wings of a wild zephyr. The vulcanized air chambers and cross-directional baffles of each Number Bed adjust to the comfort desires of each sleeper through individualized control settings, which dictate the flow of the whisper-quiet digital pump.

While The Sleep Better Store occasionally offers discounts, this Groupon still represents the best deal available.