Helix Dawn Core Mattress ($1,099, originally $1,374)
Helix is known for producing some of the most comfortable mattresses on the market, and this firm version boasts more than 1,000 near-perfect reviews, with shoppers raving about everything from the model’s body-contouring design, cloud-like comfort, and unique build which is designed for stomach sleepers, in particular. For a limited time, it’s also on sale; shoppers can enjoy 25 percent off sitewide, plus get two free pillows with their mattress purchase (totaling $150 or more).