Altitude Sleep System
Their altitude system came from Higher Peak. What I borrowed from my friends:
This is the Mountain Air Generator. The version that I borrowed and used was the MAG-7, which is no longer offered. Higher Peak now has the MAG-20. The MAG is an air separator, producing low-oxygen (hypoxic) air by taking in fresh air and removing some of the oxygen. The low-oxygen air can be used for various types of altitude training.The air produced is clean, cool, filtered, and fresh. The generator has a loud noise and produces heat.
I started out with a face mask. I immediately hated it and felt claustrophobic. I then ordered the Snowcap canopy from Higher Peak.
The snow cap canopy was PVC piping, easy to assemble. You then throw the tent over the piping. There is a chain sewn into the canopy in the front, so the part where you wiggle under stays down. It is not unpleasant.
I kept a running diary of my experience in the Snow Canopy. I had a pulse oximeter, to measure both my oxygen saturation level and my resting heart rate.
My Altitude Tent Diary:
Night One: Set altitude for 5000 feet. SpO2 92, resting heart rate 62. A difficult night. If it’s your first night sleeping in a plastic tent, you will not fall asleep right off the bat. Lots of tossing and turning. The oxygen generator noise does not help. The generator also generates heat. I also had a fan in the window. I wonder what our electricity bill will look like for June. I had a horrible run the next day.
Night Two June 1 5000 ft altitude setting. Was tired at bedtime, so slept much better. Much better sleep than Night one. 8 hours. Run on Tuesday was good.
Night 2 5000 ft. 8 hours sleep, slept well again.
Night 3 Changed to 6000 ft altitude? Need to look at settings. slept ok again. Run on Thursday good.
Night 5 June 4 Changed settings to 6500 feet above sea level. Slept fine.
Night 6 June 5 Changed settings to 7300 feet above sea level. Slept fine. I’ve been very tired this week, sleep has been coming easily. Woke up with slight headache.
Night June 7 Changed to 7400 feet elevation. AC on, consequently room way too warm. Opened window for fan, still a warm night, not good quality sleep.
June 10 Changed to 8000 feet, hot night, had to turn fan up to high, didn’t sleep well until almost morning.
Also had mild “hangover” symptoms at work for several hours. Made sure I drank plenty of water on these days. Note: these are common mild acute mountain sickness symptoms.
Tried to turn settings higher than “7”. The MAG-7 does not go higher than setting 7.
June 11 turned settings back to 7300 ft. Slept well-fell asleep, did not wake up until dawn. Woke up irritable.
June 12/13 no tent. regular bed June 12 for three hours, then slept in vehicle June 13
June 14 back to 7400 ft. slept okay. room warm even with AC on and fan.
June 15 settings back to 8000 feet. slept okay. power flickered off, MAG-7 gave a loud beep which, with the fan also going off, let me know it was off-line. The Snowcap canopy is not a “sealed” system, there are no worries that you are going to suffocate or anything even close to that.
June 16 settings at 8000 ft, cool night, fan on, slept fine.
June 18 settings to 13.9% oxygen, simulated 8900 ft. Slept awful. Reduced airflow to canopy, very dry air. Hot/cold all night long. Weird long nightmare dreams. Oxygen level 88 per pulse ox. Higher Peak recommends keeping air flow at 100, for the Snowcap canopy. To reduce the oxygen to 13.9%, I had to turn down the air flow to 80.
Jun 19 changed settings to 8000 feet. OK sleep.