I'm a side sleeper also and there are some of the masks that don't work quite as well for sleeping on your side. Another thing that has been a big help is a CPAP hose stand to keep the hose above my head and off of the pillow or bed - https://www.amazon.com/PurePAP-Holder-Stops-Tangles-Improving/dp/B08P2F95QR/. I tried a couple of the CPAP pillows but they were much too firm for what I like. I ended up getting a couple of small travel pillows and I put one for my head on top of my normal pillow which is kind of flat - https://www.amazon.com/MyPillow-Multi-Use-Travel-Cover-Daybreak/dp/B0866998LX/ref=asc_df_B0866998LX/