what's the lightest weight single duvet you can get?

[americantrish]

just wondering thanks.. need something lighter than a 4.5 tog.

i think you can get 2.5 tog.
could be wrong.
4.5 is pretty light tho... maybe you should just put a big cotton cot blanket into a duvet case?
why so light?

dh mentioned a 2.5 last night when i asked him... (heh, i asked here before asking him! ;))

ds seems warm at night, but we think we figured out why. he's just moved into a bed and was holding his grobag at night under the duvet with him and we think that was making him sweat. and we've turned the heat down a bit in his room too. (and we now wait til he's asleep and remove the grobag.)

thanks for the idea though!!