Very warm. About 5 years old and only used for a couple of weeks. Once you are snug, you can sleep without heat to -5 Centigrade or lower.
Feather Blanket 170x210cm 2.1 kg
Usual single size is 140 or 150cm wide.
This is the large single designation in Japan. You can get sheets that fit this at Nitori and so on.
This will keep you very warm with the heaters off at night.
The cover material is 100% cotton. There are loops at all four corners and middle of each of the two longer sides to tie a cover sheet in place.
The pick-up or meet-up area is Oji station (JR Keihin Tohoku line, Namboku subway line and Tokyo Sakura tram line)
or
Nishi-sugamo station (Mita subway line)
Although the weight is about 2.4 kg, the item is bulky and will be packed in a plastic bag about the size of a 55kg bag. If you are not comfortable carrying such a bag, please consider bringing a suitcase on wheels (larger than a carry-on suitcase) to the meeting point.