u/Superfluos-SquidStew

I'm thinking of testing a sleep kit without sleeping bag for ultras with warm nights.

The idea would be to carry a bivy bag, a sleeping mat and my down jacket to sleep in. Perhaps some kind of pants as well.

I am comfortable down to around 10°C in the jacket when sitting around, so I'm thinking it should be enough for a night where the temperatures dont drop below 15°C.

What are your thoughts? Have you tried similar sleepkits?