- This Dreamland mattress warmer has 6 heat settings so you can stay warm and cosy- The Intelliheat controller lets you adjust the temperature without getting up- With its 5-minute fast heat up you can snuggle in and get warm quickly- You can choose between a 1, 3 and 9 hour auto shut off timer for some peace of mind- Cleaning it is super easy - it's machine-washable and tumble dryer safe