The Kotatsu is a large table that can be bought for 1,200 Bells. It can be sold for 300 Bells at Re-Tail (240 Bells at Nooklings).
Customizing the Kotatsu costs 120 Bells. To return it to its original state, it costs half the price (60 Bells).
There are 7 options for customizing the blanket. There are no ore customizations for this item.