Deuterium the Sentient Mattress (VTuber)
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deuterium.bsky.social
Deuterium the Sentient Mattress (VTuber)
@deuterium.bsky.social
180 followers 150 following 360 posts
Read first: linktr.ee/sentientmattress
Pedantic YouTuber & VTuber. 28, he/him, aroace, autistic. No politics/transphobia/ableism, otherwise DMs open!
https://www.youtube.com/channel/UCrDiv4F89arxYISPAODSLyw
Posts Replies Media Videos
deuterium.bsky.social
#StreamSchedule incoming, better late than never!

Friday: Hollow Knight Part 5: more bugs, blades, and brooding.

Saturday: Darkenstein 3D: a boomer shooter that I’m actually in!

All streams @ 8PM GMT / 4PM Eastern / 1PM Pacific!
#streaming #VTuber #ENVtuber #VTuberEN #Mattresslive #Darkenstein3D
A stylized CRT monitor displays a weekly streaming schedule for VTuber "Deuterium" using a retro command-line interface. The screen reads: Monday to Thursday: No Stream Friday: Hollow Knight Part 5 Saturday: Darkenstein 3D (the game I'm in!) The monitor sits against a blue tiled background, with the phrase "the Sentient Mattress" at the bottom.
November 12, 2025 at 8:13 PM
deuterium.bsky.social
A collection of the sort of noises that Hollow Knight elicits from me on-stream! #streamer #rage #fail #cringe #vtuber #vtuberen #angry #hollowknight #painpeko #mattresslive
November 9, 2025 at 3:06 AM
deuterium.bsky.social
My next #HollowKnight Stream starts in about 3.5 hours from this skeet - be there or be sadly deprived of benches! youtube.com/live/NVxKFrO... #Mattresslive #envtuber #vtuberen #indie #soulslike #indie
Death and Backtracking: The Only Certainties | Hollow Knight
Hollow Knight 1, part 4. Prepare for more backtracking, more bench sitting and more of me going very slightly more insane every time I get killed! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~...
youtube.com
November 8, 2025 at 4:33 PM
deuterium.bsky.social
Just one #stream this week, playing some more #HollowKnight on Saturday @ 8PM GMT - and hopefully I won't go COMPLETELY mad! #Streaming #live #vtuber #vtuberen #mattresslive
youtube.com/live/NVxKFrO...
Death and Backtracking: The Only Certainties | Hollow Knight
Hollow Knight 1, part 4. Prepare for more backtracking, more bench sitting and more of me going very slightly more insane every time I get killed! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~...
youtube.com
November 5, 2025 at 11:06 AM
deuterium.bsky.social
Part 3 of #HollowKnight is in the books! Raided into @miwabelle.bsky.social after a WHOOOOLE lot of backtracking and at least one instance of me going completely mad. VOD here!
youtube.com/live/wuoEAgv... #VOD #Soulslike #Pain #IKeptDying
Who the Heck is Shaw? | Hollow Knight
YouTube video by Deuterium, the Sentient Mattress
youtube.com
October 30, 2025 at 9:59 PM
deuterium.bsky.social
Part 3 of #HollowKnight begins in just under 6 hours from now! Starting at 8PM GMT / 4PM Eastern / 1PM Pacific on YouTube: youtube.com/live/wuoEAgv...
Come for the deaths, stay for the SHAW! #streaming #live #VTuber #ENVtuber #VTuberEN #Mattresslive
Who the Heck is Shaw? | Hollow Knight
YouTube video by Deuterium, the Sentient Mattress
youtube.com
October 30, 2025 at 2:16 PM
deuterium.bsky.social
🧵 #StreamSchedule this week:

🦋 Thursday – Hollow Knight Part 3
🎃 Friday – Halloween Jackbox (In my Discord server)
😈 Saturday – Devil May Cry 3: Special Edition

All streams @ 8PM GMT | 4PM Eastern | 1PM Pacific!
#HollowKnight #JackboxGames #DevilMayCry3 #IndieGames #HalloweenStream #MattressLive
October 27, 2025 at 10:24 PM
deuterium.bsky.social
Do any other #Vtubers have any advice for managing viewer anxiety and/or promoting streams? I had a sponsored (keymailer) stream today and it didn't go as well as I'd hoped, any advice is appreciated <3
October 25, 2025 at 8:05 PM
deuterium.bsky.social
Streaming in 5 & a half hours! Get ready! #streaming #live #spoopy #spooky #halloween #vtuber #vtuberen
deuterium.bsky.social Deuterium the Sentient Mattress (VTuber) @deuterium.bsky.social · 20d
Join me tomorrow for 3 #spooky games for #Halloween: [HERROR] Gas Station Case (by @herrorstudio.bsky.social), Phantoms (by SolitudeDev) and Bloodthief (by @blargis.bsky.social )! Turn off the lights, grab a brew and settle in for a spooky evening...
youtube.com/live/BUHMFq_... #stream
Halloween Anthology: Petrol, Trains and Bloodlust!
YouTube video by Deuterium, the Sentient Mattress
youtube.com
October 25, 2025 at 1:23 PM
deuterium.bsky.social
Join me tomorrow for 3 #spooky games for #Halloween: [HERROR] Gas Station Case (by @herrorstudio.bsky.social), Phantoms (by SolitudeDev) and Bloodthief (by @blargis.bsky.social )! Turn off the lights, grab a brew and settle in for a spooky evening...
youtube.com/live/BUHMFq_... #stream
Halloween Anthology: Petrol, Trains and Bloodlust!
YouTube video by Deuterium, the Sentient Mattress
youtube.com
October 24, 2025 at 10:58 AM
deuterium.bsky.social
Hollow Knight episode 2, done! The plot thickens, and I keep dying... Raided into @pixxachu.bsky.social, had fun - see you all on Saturday!
October 23, 2025 at 9:21 PM
Reposted by Deuterium the Sentient Mattress (VTuber)
armiastars.com
Good morning folks!

I have a request for everyone - if you or someone you know has colour vision deficiency, I would love to hear from you!

I'm working on a project to hopefully make Twitch a little more accessible for people~
October 23, 2025 at 8:26 AM
deuterium.bsky.social
youtube.com/live/e289xv-...
#Streaming more #HollowKnight in about an hour from this post! Time to explore Greenpath some more and hope we don't get beaten up for our lunch money again!
Starting at 8PM GMT/12pm Eastern/3PM Pacific

#Mattresslive #Live #Indie #Silksong #VTuber #ENVtuber
More Bugs In Ruins | Hollow Knight
My second Hollow Knight 1 stream! Today we explore Greenpath further - and hope not to end up dying TOO much! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I'm Deuterium the Se...
youtube.com
October 23, 2025 at 6:07 PM
deuterium.bsky.social
#StreamSchedule for this week! More #HollowKnight on Thursday, followed by an anthology of three new spooky games on Saturday: Gas Station Case (by @herrorstudio.bsky.social), Phantoms (by SolitudeDev) and Bloodthief (by @blargis.bsky.social)!
All streams start at 8PM UK/3PM Eastern/12PM Pacific!
Stylized graphic of a retro computer monitor displaying a command-line interface. The screen shows a weekly streaming schedule for a content creator named "Deuterium." The schedule lists: no streams Monday to Wednesday, "Hollow Knight Part 2" on Thursday, "New Horror Games Anthology" on Saturday, and no streams on Friday and Sunday. The background features a blue grid pattern, and the bottom of the monitor reads "the Sentient Mattress."
October 19, 2025 at 8:30 PM
deuterium.bsky.social
One of my closest friends once called me an "absolute teddy bear" and that should tell you most of what you need to know about me! #InnocenceTest #ImInnocent
October 18, 2025 at 9:52 PM
deuterium.bsky.social
First Hollow Knight stream is done - most intriguing! Raided into @glamrockdusky.bsky.social, hopefully will play more of this on stream!
October 18, 2025 at 9:51 PM
deuterium.bsky.social
#Live in 30 minutes with #HollowKnight! #Livenow #Streaming #ENVtuber
October 18, 2025 at 6:31 PM
deuterium.bsky.social
I'm in a game! Specifically, @rowye.bsky.social's Darkenstein 3D as the fearsome Panzerfauster!
October 18, 2025 at 6:30 PM
deuterium.bsky.social
#Streaming in 24 hours from this skeet!
Finally getting round to playing #HollowKnight... Eep!
Will I survive or be squashed? 8PM BST / 3PM EDT / 12PM PDT tomorrow!
youtube.com/live/Src9Nol...
#live #VTuber #ENVtuber #VTuberEN #Mattresslive #indiegame #soulslike #gamingstream
Is this that Silksong everyone's raving about? | Hollow Knight
YouTube video by Deuterium, the Sentient Mattress
youtube.com
October 17, 2025 at 7:02 PM
deuterium.bsky.social
#Stream starts in just under 2 hours 20 minutes! Come watch various vile villains be vivisected in Vampire Hunters!
October 16, 2025 at 4:42 PM
deuterium.bsky.social
Vampire Hunters #stream TOMORROW! Going live at 8PM BST / 3PM EDT / 12PM PDT to stake some chaos and slay some monsters - come join in?

youtube.com/live/fXLqXyv...

#streaming #live #VTuber #ENVtuber #VTuberEN #Mattresslive #indiegame #VampireHunters
Too Many Guns! | Vampire Hunters
YouTube video by Deuterium, the Sentient Mattress
youtube.com
October 15, 2025 at 5:59 PM
deuterium.bsky.social
Finally getting back into #streaming with a pair of spooky games - #VampireHunters on Thursday and #HollowKnight on Saturday! Both starting at 8PM BST/3PM EDT/12PM PDT! Links in the comments!
A monitor displays a stream schedule with the title "Deuterium" and "the Sentient Mattress" at the bottom. The schedule, resembling a command prompt, lists: C://Deuterium/StreamSchedule Monday: No Stream Tuesday: No Stream Wednesday: No Stream Thursday: Vampire Hunters Friday: No Stream Saturday: Hollow Knight Sunday: No Stream C://_
October 12, 2025 at 3:31 PM
deuterium.bsky.social
Gonna give streaming a rest this week. Vibes are off and seasonal megrims are setting in. See yiz all next week, hopefully!
October 6, 2025 at 2:55 PM
deuterium.bsky.social
A reminder this #Halloween NOT to stream the "Undead Tombstone" remix of #SpookyScarySkeletons. That remix is named to make people believe it's @livingtombstone.bsky.social's version when it is in fact a rip-off. Listen to the original TLT remix on YouTube instead: www.youtube.com/watch?v=q6-Z...
Spooky Scary Skeletons (Remix) - Extended Mix
YouTube video by The Living Tombstone
www.youtube.com
October 4, 2025 at 9:12 PM
deuterium.bsky.social
A reminder this #Halloween NOT to stream the "Undead Tombstone" remix of #SpookyScarySkeletons. That remix is named to make people believe it's #TheLivingTombstone's version when it is in fact a rip-off. Listen to the original TLT remix on YouTube instead:
www.youtube.com/watch?v=q6-Z...
Spooky Scary Skeletons (Remix) - Extended Mix
YouTube video by The Living Tombstone
www.youtube.com
October 4, 2025 at 9:09 PM