Hello, old friend! -- TAI would like to take this opportunity to praise the oft-forgotten low-tech wellness miracle that is the hot water bottle. Its simplicity is deceiving. Clearly it has magical healing powers -- how could it be possible to buy something on a whim that turns out to be more effective than pharmaceuticals, is forever reusable, and essentially free to "recharge"? Adding the HWB to the mix of Bob-O-Pedic memory foam mattress and multiple layers of down duvets in the TAI master suite is making a real difference on these nippy winter nights. We salute you!