HHabits & Hustle
← All episodes
Jack Dell'Accio10 February 2026

Episode 527: Jack Dell'Accio: How Your Mattress Impacts REM Sleep, Brain Recovery and Performance

3Frameworks
10Insights

Listen

Frameworks in this episode

Insights & moments

The myth-busts, hot takes, explainers, and tools worth keeping.

Myth Buster· 2

Myth Buster24:00

Why an Organic Label May Describe Materials, Not Performance

Dellaccio says an organic mattress generally replaces conventional components with natural, pesticide-free alternatives but may retain the same basic coil construction. In his account, that can reduce off-gassing without addressing posture support, heat management, or EMF concerns. The segment separates a material-sourcing claim from broader sleep-performance claims.

  • Organic refers primarily to material sourcing
  • Many organic mattresses still use spring coils
  • Replacing polyester and foam can reduce synthetic materials
  • An organic label alone does not establish support or temperature performance

They have to be natural pesticide-free materials.

Jack Dellaccio · 24:00

95% of organic mattresses sold out there are have spring coils in them

Jack Dellaccio · 24:00
#organic#materials#coils#off-gassing
Myth Buster29:00

The 'Chasing the Cold' Problem With Cooling Beds

Dellaccio challenges the idea that a cooling sensation guarantees better sleep. He says chemically treated surfaces cool briefly when body heat triggers a reaction, then warm again, prompting unconscious repositioning to find another cool area. He contrasts refrigeration with a breathable surface that lets each sleeper release heat at a changing, individual rate.

  • A cool first touch may result from a short chemical reaction
  • The effect is described as lasting roughly 30 seconds
  • Repeated repositioning can fragment sleep
  • Heat-release needs vary by activity, food, life stage, and partner
  • Breathability is distinguished from active refrigeration

it lasts maybe 30 seconds and then the temperature starts to warm up again. So on that bed you're chasing the cold.

Jack Dellaccio · 31:00

Our foam technology and we have two different versions of this, two different formulas allows your body heat to escape.

Jack Dellaccio · 32:00
#cooling#temperature#thermoregulation#sleep disruption

Hot Take· 3

Hot Take15:30

Dellaccio Says Mattress Toxins Matter More Than EMFs

When comparing an ordinary all-foam mattress with his product, Dellaccio ranks toxins above EMF exposure. He claims off-gassing stimulates the central nervous system and interferes with the slowdown needed for deeper sleep, while Cohen highlights how rarely the mattress is included in mainstream sleep-hygiene discussions.

  • Dellaccio ranks toxins as the first concern for conventional foam
  • He links chemical exposure to central nervous system activation
  • He says apparent unconsciousness can mask predominantly light sleep
  • The claims are presented without an independent expert response

Number one on your problem list on on on the product that you're describing as an all foam mattress is toxins.

Jack Dellaccio · 15:30

They're stimulating your central nervous system to actually speed up.

Jack Dellaccio · 16:00
#toxins#foam#light sleep#brain health
Hot Take36:30

A Premium Price Can Hide the Same Basic Materials

Dellaccio argues that mass-market brands often create premium tiers by using more of the same materials, increasing density, thickness, or tailoring without changing the underlying wellness profile. He frames this as merchandising that exploits brand trust and an uninformed buyer's assumption that the most expensive model must be the healthiest or best-performing.

  • Premium tiers may use more of an existing material stack
  • Thickness and tailoring can increase perceived value
  • Brand power can substitute for transparent specifications
  • Higher price alone does not establish sleep performance

they want to be part of the premium product, premium mattress. So they use the same materials they have there and they make it a…

Jack Dellaccio · 36:30

They're just using their brand power to sell that.

Jack Dellaccio · 37:00
#pricing#branding#materials#consumer choice
Hot Take47:00

Three Tradeoffs of Plug-In Cooling Pads

Dellaccio criticizes powered cooling pads on three grounds: synthetic material exposure, an electrical device close to the sleeper, and refrigeration rather than natural heat escape. Cohen agrees that plugging the system in introduces another electrical component. The argument is the guest's product-oriented assessment and is not tested comparatively during the episode.

  • Cooling pads may use synthetic materials
  • Powered systems add an electrical device near the bed
  • Circulating cool water chills the body rather than increasing breathability
  • The episode includes no independent comparison of health outcomes

The other way is mechanical where you have companies that are making sleep pads that plug into the wall and they they basically it's a…

Jack Dellaccio · 47:30

Number two it's an electronic product. And number three it doesn't allow your body heat to escape. It's refrigerating you.

Jack Dellaccio · 47:30
#cooling pad#electronics#heat#sleep technology

Explainer· 2

Explainer07:00

Why Eight Hours Can Still Leave You Unrecovered

Dellaccio argues that time asleep is not equivalent to restorative sleep. He says recovery depends heavily on REM and deep sleep, and claims environmental stimulation can keep the brain in lighter sleep even when someone remains unconscious for eight hours.

  • Sleep duration does not establish sleep quality
  • REM and deep sleep are presented as the key recovery stages
  • Environmental stimulation may keep sleep lighter
  • Morning recovery should be considered alongside hours slept

what we're trying to accomplish in 6 to 8 hours is to get 3, three and a half hours of REM sleep and deep sleep.

Jack Dellaccio · 07:30

You may say you sleep for eight hours, but you're actually getting light sleep because the central nervous system activation that that causes keeps you…

Jack Dellaccio · 16:00
#sleep#rem#deep sleep#recovery
Explainer08:30

The Claimed Link Between Mattress Coils and EMF Exposure

Dellaccio claims that metal coils can act as antennas in an environment filled with phone, tablet, and Wi-Fi signals. He distinguishes these signals from older electrical exposures and describes a proprietary quartz-and-foam approach intended to alter how signals interact around the bed; these are the guest's claims, not independently evaluated evidence in the episode.

  • Coil mattresses are described as potential antennas
  • Phones, tablets, and Wi-Fi are identified as modern signal sources
  • Dellaccio says quartz in the foam creates a dominant wave pattern
  • The episode does not independently verify the health claims

whether it's a coil mattress which is be make truly becoming an antenna for EMFs and attracting EMFs to be spiraling through your body.

Jack Dellaccio · 09:00

So we made our bed our foam actually with an informed quartz and the quartz has a signal and that signal mimics the human body's…

Jack Dellaccio · 13:00
#emf#mattress#quartz#sleep environment

Story· 2

Story20:30

Inside Essentia's 75-Athlete Double-Blind Study

Dellaccio describes a company study involving 75 professional athletes who believed they were all sleeping on Essentia mattresses, although only half were. He reports that the Essentia group recorded 20% to 60% more REM and deep sleep and gave better subjective responses on happiness, focus, and learning. The episode does not provide the protocol, publication, raw data, or statistical analysis needed to assess the result independently.

  • The study is described as double blind
  • Seventy-five professional athletes participated
  • Top-performing mattresses served as placebos
  • The reported REM and deep-sleep improvement ranged from 20% to 60%
  • Subjective focus and happiness responses also reportedly improved

two years ago we did a a double blind study sleep study with 75 five pro aletes, half of them, everyone thought they were sleeping…

Jack Dellaccio · 20:30

everyone sleeping on essentia score 20 to 60% more REM sleep and deep sleep.

Jack Dellaccio · 20:30
#athletes#sleep study#rem#performance
Story1:00:30

A Military Mold Problem Prompted a Formula Change

Dellaccio says a military request for advice on barracks mold led him to revisit the essential oils in his mattress formula. After changing to higher-acidity oils, he reports laboratory tests in which mold spores stopped growing or retracted in some cases. He says the company then applied the revised formula across its mattresses.

  • The military sought advice about mold in barracks
  • The existing organic-rubber product was described as mold resistant
  • Higher-acidity essential oils were introduced
  • Dellaccio reports reduced mold-spore growth in laboratory testing
  • The formula change was rolled out across the product line

we were approached by the military to try to overcome a problem that they had with uh overcoming mold issue in barracks.

Jack Dellaccio · 1:00:30

we were able to test in labs that wow those mold spores were not growing anymore. In some cases they were retracting.

Jack Dellaccio · 1:01:30
#mold#essential oils#product development#military

Takeaway· 1

Takeaway40:30

Poor Sleep Can Follow You Into Every Daily Challenge

Dellaccio describes sleep as a foundation for handling stress rather than merely a response to physical pain. In his account, good sleep improves clarity during difficult situations and makes it easier to disengage afterward, while exhaustion leaves challenges feeling unresolved. Cohen adds that several bad nights can create anxiety about bedtime itself.

  • Sleep affects how challenges are handled during the day
  • Exhaustion can reduce clarity and satisfaction with decisions
  • Unresolved stress can carry into the evening
  • Fear of another bad night can reinforce insomnia anxiety

How you sleep affects not only how you deal with it,

Jack Dellaccio · 41:00

you get super anxious about going to bed because you're like, am I not going to sleep again tonight?

Jennifer Cohen · 42:00
#stress#anxiety#clarity#insomnia