Just wondering if anybody uses both Peat moss & waxed sand.
I'm thinking Peat under the trap and waxed sand for cover.
Or should it be the same bedding for the entire set.

After bedding in waxed dirt/sand i sometimes use peat over the top to blend in the set

I don’t understand WHY you want to use both except for cheapness but I highly disagree with the concept. When I started trapping coyotes in the late-90’s I only used peat in the trap bed/covering and I believe I did very well at the time by blending my sets with a whiskbroom. Those sets could still freeze with a hard rain and cold snap though. Peat is NOT bulletproof-proof by any means as I've had entire trap beds fill with water like a swimming pool!! I also made sure that my sets was constructed so that all I wanted or needed was one step! I did NOT want the coyote prancing
/shuffling around on the peat before stepping on the pan. That in my opinion is a very poor set method to trap coyotes.

In later years after listening to all the hype of waxed sand & waxed dirt I switched to waxed sand. If a trapper uses quality waxed sand and applies it correctly(encapsulates the trap) they can have as close to a bullet-proof set as possible IMHO but the trapper cannot be 1/2-arsed about the amount used Again, the whiskbroom is your friend for blending over the waxed sand with a thin layer of ground duff. I have always been a “blended set” trapper and never saw the legitimacy of trying to match the finished set soil naturally with a waxed product or peat. Dirt, frozen dirt, clay, snow, etc your whiskbroom is your best friend! IMHO!

I don’t use peat.

But I do use coal shale.

Both need to be blended in my country or they’ll stick out like a sore thumb, or blow away.

Enter waxed sand to match the surroundings. One pint of waxed sand can top dress a lot of sets.

When you start running a lot of sets over many months, waxed whatever starts to get cost and time prohibitive for exclusive usage.

I've never used Peat moss just always used waxed dirt/sand. This last winter with the freeze thaw every other day, nothing I did helped my sets not freeze. I even made an extra wax added batch to see if that would of helped a little. Just wondering if I would throw Peat I to the mix if that would help me in any way.
The areas I trap in are in the mountains with pine trees, alot of duff and needles.
Just trying to be more successful either way possible.

I've had better luck with waxed sand than waxed dirt. I have never used peat or coal shale. We don't have natural coal shale around and I would have to buy it, or collect it when I was in Wyoming. Peat will soak up water and freeze if there is enough moisture. You need to completely encase your trap in waxed sand to be effective. And if it gets a crust of ice and snow over your trap no type of bedding will help.