Hi cperron4321, welcome to the Mattress Underground 
Glad to have you here on our forum!
Sorry to hear your Polysleep mattress is causing lower back pains…with heavy weight training it’s totally understandable you want a mattress that will allow your muscles to recover! As you know, any mattress you choose will be unique to you based on your Stats(height, BMI, sleeping position(s) & any underlying health issues) - well done providing those! - and PPP(Posture & alignment, Pressure relief and Personal preferences).
Memory foam can be supportive, but a mattress made with excessive amounts of inexpensive ‘filler’ of insufficient density can prematurely wear out, as sounds like the case with your PolySleep mattress, causing uneven wear and ‘valleys’ and ‘ridges’ as the foam is not ‘recovering’ from the impressions made by the sleeper…this can cause or exacerbate aches pains and ultimately affect alignment.
We recommend any foam in a potential mattress has no more than an inch or so of lower grade foams (for memory foam no lower than 4 lbs/cuft for normal range weights, and 5lbs/cuft for higher range weights) and if polyfoam is used, with at least 1.8 lbs/cuft density, just to ensure you have support. With your higher BMI, it’s not surprising that it’s wearing out…The PolySleep is a 10" mattress of 4 layers of Viscoelastic and ‘Polysleep foam’:2.5" of visco foam at 3lbs/cuft comfort layer, with a 2" Polysleep 1.8lbs/cuft transition layer an a 5.5" Polysleep foam 1.8lb/cuft support layer. It may serve as a short term solution but for the price is certainly less of a deal than other similar memory foam mattresses on the market. As you are also a ‘hot sleeper’, memory foam is less than ideal as by its nature, the conforming properties keep heat close to the surface of the sleepers skin.
Taking a look at your choices:
- S&S hybrid has 2 layers of gel memory foam of unspecified density over a pocket coil unit with unspecified coil gauge. It has an antimicrobial cover and HQ quilted foam surface.
- S&S Organic hybrid has a 1" New Zealand wool quilt cover, 2.5" Dunlop latex (.75" and 1.75" of ILD 14-19) comfort layer, and a zoned pocket coil support layer of unknown gauge and 450-992 count coils, depending on mattress size.
- Logan & Cove hybrid has a tencel cover, 1" gel foam, 1" ‘contouring’ bio foam, and another 2" bio foam layer all of unknown density, and pocketed coils of unspecified gauge or coil count, with edge support.
- The Hamuq hybrid, while Canadian made, has little information on its’ components:
a ‘Coolclean’ cover, ‘cloud tech’ comfort layer, TRS adaptive gel foam later, and
Pocketed coils, while the Hamuq Organic hybrid has an organic cotton cover, a Joma wool quilted layer, 2.5" organic Dunlop latex comfort layer and pocket coils.
One thing noticeable in this list is a lack of details on some of these mattresses; any latex or latex hybrid mattress will have the comfort and durability inherent in latex; and if you find a compatible comfort level and can try these in person, they should be fine for you. I would caution on any of the gel hybrids, as with a higher BMI, weight training and your lower back pain, not knowing the density or even thickness of the layers of the mattresses you listed make it difficult to assess how durable and supportive they might be for your sleep profile. As far as hotel mattresses, these are usually made specifically for the hotel chain by the mattress manufacturer, and it’s often hard if not impossible to find the specifications of the mattress in order to try to duplicate it.
Also, a number of the Trusted Members of the site are located in Canada, such as The Clean Bedroom, MFC, Dormio, Takasa, CBH Wood, and Restmore; they carry a variety of latex, latex hybrid and foam hybrid mattresses and can help you to find a great compatible mattress if you can provide your Stats, PPP, mattress history and the feel you are looking for. Wishes for success in your mattress buying journey!
~ Basilio