I use the BackJoy. Seems to help, I plan on bringing it with. It is supposed to relieve strain on tailbone and sit bone, light weight and not bulky. Be safe out there
I'm bringing BackJoy with me to Fontana for training, I tried using it on a Matrix, it seems working fine. Worth trying for long time drivers.
If your seat has the adjustment, you can lift the rear of the seat. My seat had a nob on the right side (like the one on the left that adjust the back and forth lean) that will raise and lower the seat cushion portion of the seat. Not all have this option but it may help to adjust it if you do. Also lumbar support will help a little. You can also try a pillow under your but for added cushion.
I was going to say what David said....try adjusting the forward/backward lean of the seat cushion itself. It may be leaning too far forward so your legs aren't taking enough of the weight and it's going to your tailbone. If it's leaning too far back your legs will take too much of the pressure and you might feel your feet start tingling a little bit after a while because the circulation is getting cut off.
Unless you have a really old, terrible seat you should be able to get comfortable without anything underneath you. Of course that doesn't mean those things don't help. I used to use the wooden beads you lay on the seat and those were great. I did that so air would circulate better and so that my pants wouldn't stick to the fabric of the seat and get all bunched up and twisted.
Try stretching after driving. Lay on your back & pull your knee to your chest. Hold it about 15-20 seconds. Switch legs & repeat. Do it a bunch of times. Chiropractor suggested it years ago & I still do it. He said the back is compressing & this helps decompress. Best if done on flat surface but bunk is better than nothing.
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So I've started to notice a lot of tailbone pressure when sitting "normally" in my seat. I can relieve the pressure by either tucking my feet way back, or leaning forward towards the wheel (not slumped, back straight) but both of those options aren't perfect since they aren't optimal for truck control.
So I was wondering, what do some of you more experienced drivers use? A donut-pillow? One of those lumbar support pads?
HOS:
Hours Of Service
HOS refers to the logbook hours of service regulations.