http://www.trekking-lite-store.com/Schl ... ::500.html

Down to around 3 degrees with a woolly hat, long sleeved top and Ron Hills, slept for 7 hours
And with 3 night trip up north just finished.

Around 8 degrees, nothing on, short nights slept for 6 hours

As above but with midges and 5 hours of heavy overnight rain, nothing on, short nights slept for 6 to 7 hours

10 degrees, with millions of midges after the days head winds died down, needing a shower and getting a no electric, basic hut for half price, nothing on, slept for 8 hours
I'm now a quilt convert.
Here's Stuarts review of the lighter 150
http://bearbonesbikepacking.blogspot.co ... ested.html
Which is only for warm summer nights, not like this weekend just gone.
Now I'm looking at winter quilts, anyone want to buy a sleeping bag or 2?