🔴 UPDATE: Eight sleep 350$/200$ (€) discount*: https://eight-sleep.ioym.net/TheQuant... + add code “UNBOXTHERAPY” for 350$/200$ total discount
🔴 Eight sleep 150/200$ (€) discount*: https://eight-sleep.ioym.net/TheQuant... + add code “TQS” for 150/200$ total discount

🔴 General Amazon link*: https://geni.us/thequantifiedscientist
🟢 Instagram:   / quantified_scientist  
🟠 Shorts:    / @smartwatchshorts  
🔵 Newsletter: www.robterhorst.com
🟡 Twitter: @QuantifiedRob
* Affiliate (paid) links support the channel by earning me a commission on any sale, and it doesn't cost you any more! My opinions are completely my own, and this content is not sponsored.
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👇 $30 off any new WHOOP membership, affiliate* (paid) link, supports the channel!👇
https://join.whoop.com/QuantifiedScie... ($30 off any new WHOOP membership)
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👇Amazon Affiliate* (paid) links. Supports the channel, doesn't cost you any more!👇
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🔴 Oura Link: I recommend you search for a discount on reddit with the "Refer-A-Friend" program! If you can’t find one: https://ouraring.sjv.io/rQ4L33 (affiliate link that supports the channel, but doesn't have a discount)
🔴 Whoop Strap 4.0: https://join.whoop.com/QuantifiedScie...
($30 off any new WHOOP membership)
🔴 Eight sleep 150$ discount*: https://eight-sleep.ioym.net/TheQuant... + add code “TQS” for 150$ total discount
🔴 General Amazon link*: https://geni.us/thequantifiedscientist

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📸My Gear* (paid links, supports the channel and doesn’t cost you any more)📸
Camera body (main): https://geni.us/SonyA6600_body
Camera lens (main): https://geni.us/SigmaContemporary
Camera (B-roll 1): https://geni.us/Sony_ZVE1
Camera (B-roll 2): https://geni.us/CanonEosM50MarkII and https://geni.us/Sony_ZVE10
Light: https://geni.us/Godox_VL150
Softbox: https://geni.us/NiceFotoSoftbox
Light stand: https://geni.us/WalimexLightstand
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Reference devices:
ZMax + Dreamento: https://www.biorxiv.org/content/10.11... & https://github.com/dreamento/dreamento
Polar H10: https://pubmed.ncbi.nlm.nih.gov/31004...
🔴 Polar H10: https://geni.us/hnXc

Intro Music from #Uppbeat (free for Creators!):
https://uppbeat.io/t/moire/new-life
License code: OBLD6VBBCTRDFZQP

Timestamps:
00:00 What is the Pod 4 Ultra?
04:08 Heart Rate Accuracy Test
06:28 HRV Accuracy Test
08:39 Breathing Rate Test
09:48 Sleep Stage Tracking Test
14:24 Sleep Stage Compared to Other Devices
16:00 Snore Reduction “Test”
18:30 Body Core Temperature Regulation
20:57 Oura Ring 3 Comparison
22:59 Final Conclusions and Limitations

The brand-new Eight Sleep Pod 4 is a significant upgrade over the Pod 3, with more features, like new temperature controls and an adjustable base, faster cooling, and, if you get the ultra version, the ability to reduce your snoring; or maybe more importantly, your partner’s snoring as well. The Eight Sleep Pod 3 has been my favorite sleep improvement device for a while now, so let’s see if the Pod 4 can improve on this. Similar to the Pod 3, the Pod 4 simply wraps around your mattress, and provides temperature control, health tracking and much more. In this video we will take a look at those new features and scientifically review the Pod 4 Ultra. We will independently and systematically test the sleep stage tracking, the heart rate and heart rate variability accuracy, and the breathing rate measurements. And of course we'll take a look at one of the most interesting features, snore reduction. Finally, we will also look at the patterns of the cooling and heating of the Pod 4, and how that correlates with my core body temperature. I will also discuss who should upgrade their older generation Pod to the Pod 4; and Pod 3 owners will be happy to hear that even though the Pod 4 is better, the Pod 3 is still good enough in most situations, but it depends.
Before starting the testing, let me give you an overview of the Pod 4’s and Pod 4 Ultra’s features and improvements over the Pod 3. One of the main new introductions is the "Tap to Control'' feature. If you tap twice on a sensor on either side of the bed, that side will cool down further, or if you triple tap it will warm up, and these actions are always confirmed by a vibration motor. This means you don’t have to get your phone out to make adjustments during the night. This tapping can also be used to mute the alarm, and if you get the ultra version, a quadruple tap will actually change the position of the bed.
The Pod 4 will come in two versions, the normal Pod 4 and the Pod 4 Ultra, which also includes an adjustable base that can elevate both the head and feet

Science behind raising the head for snoring/apnea:
https://www.ncbi.nlm.nih.gov/pmc/arti... (Dr. Oz… 🙁)
https://www.ncbi.nlm.nih.gov/pmc/arti...