Helix Sleep: Ideal mattress and pillow?

Helix Sleep offers customized mattresses and pillows tailored to individual sleep needs. According to Andrew Huberman, the customization process involves a quiz on Helix's website, which assesses preferences such as your typical sleeping position (back, side, or stomach) and whether you usually feel hot or cold during sleep. Based on these details, Helix will recommend a specific mattress type, with the "Dusk" mattress being a specific example mentioned by Huberman. He has personally used the Dusk mattress and reports significantly improved sleep quality, which in turn enhances his overall mental alertness and physical performance 1 2 3.