Hey Josh,
Welcome to the MattressUnderGround.
Given your needs as a side sleeper with shoulder pain, hot sleeping, and a dust mite allergy, here are a few mattress layer recommendations that might work well for you:
I recommend washing your sheets, pillowcases, and duvet covers with a couple of capfuls of eucalyptus essential oil in the wash. Just like using lavender sachets and cedar in your closet to deter moths, eucalyptus acts as a natural dust mite repellent. Additionally, ensure your room is kept dry and free from excess moisture to help minimize allergens.
1. Hybrid Comfort Layer
A combination of latex and memory foam can offer a good balance. You might want to look for a mattress that has a top layer of latex for its cooling and hypoallergenic properties, paired with a supportive layer of gel-infused memory foam that’s designed to sleep cooler. The latex can provide responsiveness and support, while the gel foam can offer pressure relief.
2. Wool and Latex Blend
You could also consider a mattress with a wool layer combined with latex. Wool is breathable and helps regulate temperature, while latex provides support and pressure relief. Make sure the wool layer is thick enough to offer comfort without sacrificing support.
3. High-Quality Pocket Springs with Adaptive Foam
A mattress with pocket springs and a top layer of adaptive foam can be beneficial. Adaptive foams are designed to contour to your body while offering better breathability than traditional memory foam.
Since you are in the UK, Millbrook makes an amazing mattress topper that employs latex and wool and was one of the most comfortable toppers I have ever lied on, while at a recent trade show in Las Vegas.
Another important tip is to reassess your pillow choice. If your mattress feels too firm, a higher loft pillow can help alleviate shoulder pressure by keeping your neck aligned with your spine. This adjustment can enhance comfort and support while you sleep. Some folks prefer pillows with the side sleeper center cut out of the pillow, such as this design. The pillow can be made from any material fill, but horsehair and wool will likely be the coolest to sleep on. My horsehair pillows retain no heat at all and despite compressing slightly when sleeping with them, when used in combination with a 2nd pillow as the base pillow, horsehair has worked wonders for me.
Hopefully this will help, good luck.
Maverick