If you want to buy a big traditional upright, but aside from the much higher price, I simply don't have the space in my house to store it. Sauna domes completely solve this problem. The size is perfect and I didn't realize I would prefer to lie down! I've done some research on the health benefits of far infrared technology and I'm intrigued.
Spending 30 minutes will relax you, but it will also leave you completely exhausted. I found the opposite to be true. After my morning sauna, I felt so relaxed, but also absolutely stunning, and I seemed more energized than my usual sluggish self...enough to last me through the day. I also noticed that I slept better at night. I used to wake up every night between 2 and 3 with a fever (I suspect menopause). I think I've only woken up a few times in total in the past three weeks...which is huge for me.
Other health benefits...I've read about other healing benefits and how it boosts my immune system...especially the infrared technology that penetrates deep into my body. I can't make any claims in that department (I'm very healthy and rarely get sick), but it does make sense and it can help a lot. I know that the body responds to fever by increasing the production of antibodies and stimulating white blood cells.
Overall, buy with no regrets. I can honestly say that I think you all deserve one if you can. I want everyone to participate. If every home was equipped with a sauna dome, the world would be a better, happier, healthier and more peaceful place.