Eight Sleep Pod 4 Cover

The Eight Sleep Pod 4 Cover turns any mattress into a temperature-controlled sleep system. It heats or cools each side of the bed independently (from 55°F to 110°F), so couples with different temperature preferences both sleep perfectly. The app learns your sleep patterns and automatically adjusts temperature throughout the night — cooler during deep sleep, warmer before your wake time. Vibration alarm wakes you gently without disturbing your partner. Biometric tracking (heart rate, HRV, respiratory rate, sleep stages) rivals dedicated wearables. The Autopilot feature optimizes everything automatically based on your data. Requires a subscription ($15/month). It's expensive, but if temperature is your sleep bottleneck, this is the most effective solution available.