Synthetic Quilt to Boost Accomplice 20F in Winter?

Has anyone used a synthetic quilt over a 20F EE Accomplice quilt in winter to boost warmth and move the dew point to the synthetic bag?

Can anyone recommend a 40F synthetic quilt that’s wide enough to go over the Accomplice? Or would it have to be custom-ordered or MYOG?

Did you contact EE with custom request? Maybe worth a try…those folks are great at accommodating if at all possible

if it’s helpful

I use a quilt made from 2.5 climashield over my down bag and it gets me 10-15 degrees extra warmth

I would suggest Helium Hiking Equipment. Very reasonable prices, fully custom work available. I have a single Apex quilt with Membrane 66 inner and Robic XL outer from them with a head hole that I like a lot. Synth quilts work very well in my limited experience for keeping the down dry in a mid in winter. Making it wearable for one in some way could save weight as well.

I just made a synthetic quilt just for this purpose with 3.6 apex. Well, mine is to go over my EE Revelation though but same idea. It’s a really easy myog project. I think my cost was around $75 for materials and I finished it in about 3 hours. I have serviceable sewing skills and this was well within my range. You could spend much less with different inner and outer shell fabrics. I’m now thinking about making synthetic quilts for my kids. I don’t think down quilts are worth making if you’re trying to save money but with synthetic you can a lot of money.

This may be apples to oranges as for conditions go, as you mention dew point and I generally hike in a drier climate on the west coast but, I think this is worth mentioning to you. Last year while hiking the Tahoe Rim Trail in November with overnight temps dipping into the low teen’s, I took my 20* Zpacks quilt and modified it with three longer hook & loop straps across the zipper to hold the bag together without having to use the zipper.  What this did, was allow the bottom of the bag to be opened up but still secured, which made extra room for me to wear a down jacket w/hood inside the bag without compressing the loft from the inside out.  This worked well and slept comfortably for the entire hike.  I also have an older EE 30* Revelation which I’ve done this with a couple times, and the design  build allows this without modifications.