Designer Living drops the price of the Beautyrest Cotton Rich Heated Mattress Pad, in Twin size, from $79.99 to $23.99 via code SIMMONS20 at checkout. This mattress pad features a 210TC fabric top, digital control, 10-hour auto shut-off and fits mattresses up to 20" thick. It is also available in Full for $31.99 after code and King for $54.39. The larger sizes have dual temperature controls for each side. Shipping is $7.95 or free over $75 and there is no sales tax (except CA, NC, NY and OH).