Formation (2009) Almost immediately after
Paddock Park's end,
Brian Calzini went on to form Sleeping With Sirens with former member of Uprising Records band Broadway, Nick Trombino. Finding members from Orlando, Florida and a singer Kellin Quinn from Oregon. Williams spent two weeks with the band in Orlando, Florida writing together in a studio then went on to record The Bomb.com and Big Gulps. Williams soon after recording parted ways with the band with Quinn taking over all vocals. He has stated in interviews Quinn wanted the band to go in a different direction and there was no harsh feeling between him and former bandmates. Soon after Williams went on to create his current band
We Are Defiance.
With Ears to See and Eyes to Hear (2009–2010) The band's first album,
With Ears to See and Eyes to Hear, was released on March 23, 2010. It debuted at number 7 on
Billboards
Top Heatseekers chart and at number 36 on
Top Independent Albums. The album spawned three singles. One of those singles, "If I'm James Dean, You're Audrey Hepburn" earned the band much recognition, and on April 2, 2026, the single was certified platinum by the
RIAA after 1,000,000 copies were sold in the US.
''Let's Cheers to This'' (2011–2012) On April 7, 2011, the band released "Do It Now Remember It Later", the first single off of the band's new album. Later in the month on April 28, the next single "Fire" was released. The band's second album ''
Let's Cheers to This'' was released on May 10, 2011. On June 26, 2012, the band released its first acoustic EP,
If You Were a Movie, This Would Be Your Soundtrack. On October 21, 2012, Sleeping with Sirens released a new single called "Dead Walker Texas Ranger" as a Halloween special.
Feel (2013–2014) , in 2013.|thumb|right|320px In January 2013, the band entered the studio to record its follow up to ''
Let's Cheers to This'' with an estimated release date of mid-2013. On April 23, 2013, the band released a new single called "Low" and revealed the new album's title as
Feel and release date as June 4, 2013. In support of the new album, the band will be playing Kia main stage at the
Vans Warped Tour 2013. On May 21, the band released the second single from Feel, "Alone" Featuring
Machine Gun Kelly. On August 4, the band announced that it would be headlining a tour titled the Feel This Tour in support of the album
Feel.
Memphis May Fire,
Breathe Carolina,
Issues, and
Our Last Night supported the tour on selected dates. On October 16, 2013, guitarist Jesse Lawson announced his departure from the band, citing his desire to spend more time with his family and start a new musical venture. After Lawson's amicable departure the band tapped Nick Martin (formerly of
D.R.U.G.S. and
Underminded) to fill in on guitar on the band's upcoming UK/EU Feel tour.
Madness (2014–2016) On July 6, 2014, the band released pictures of the band members in the studio recording new music with
John Feldmann. On July 21, 2014, the band announced that it would be headlining
a world tour alongside
Pierce the Veil, with supporting acts
Beartooth and
This Wild Life. On August 8, 2014, the band members announced that the band had parted ways with
Rise Records and working on as an independent band. However, on November 10, 2014, it was announced on
Alternative Press that the band signed to
Epitaph Records and released a new single called "
Kick Me". The band followed the release of "Kick Me", with its single "We Like It Loud", on New Year's Day. It was available for free download for twenty four hours through the band's website.
Gossip (2017–2018) The band's next album,
Gossip was released on September 22, 2017. They began their worldwide, Up Close and Personal Gossip tour, in October 2017 with special guests
The White Noise,
Palaye Royale and
Chase Atlantic. Starting in May 2018, Sleeping with Sirens began the European leg of the tour with Chase Atlantic and Chapel.
How It Feels to Be Lost (2019–2020) On June 19, 2019, the band released the single "Leave It All Behind", which is closer to their older sound than the poppier sound of
Gossip, and announced their sixth studio album,
How It Feels to Be Lost. It was the band's first release under
Sumerian Records. On July 19, 2019, the band released the album's second single, "Break Me Down." On August 8, 2019, the band released the album's third single, "Agree to Disagree." Longtime drummer Gabe Barham departed the band on September 1, 2019. Shortly after, it was announced that Matty Best (of
Tonight Alive) would be taking over drumming duties for the band. On April 9, 2020, lead guitarist Jack Fowler teased a short clip from a heavy and yet-to-be-released song. On July 24, 2020, band released a new single that Jack Fowler teased before, "Talking to Myself", with an accompanying lyric video. The band announced the release of a deluxe version of the album "How It Feels To Be Lost", which came out on August 21, 2020.
Complete Collapse (2021–2023) On June 2, 2021, the band released the single "Bloody Knuckles" from their upcoming album. Just over a year later, on June 22, 2022, the band released their second single called "Crosses" featuring
Spencer Chamberlain from
Underoath whilst also announcing their seventh studio album
Complete Collapse, which was released on October 14, 2022. On July 14, 2022, guitarist Jack Fowler announced he had departed the band, having contributed to the album prior to the announcement. He is currently a touring guitarist for country artist/rapper
Jelly Roll. Former
The Word Alive guitarist Tony Pizzuti was recruited as the lead guitarist for the band. On August 11, 2022, the band released two singles, "Let You Down" featuring Charlotte Sands and "Ctrl + Alt + Del". The single "Complete Collapse" was released on September 14, 2022, alongside an accompanying music video. The album was released on October 14, 2022, along with "Be Happy," another track from the album, as a single the same day. Following the release of the album, the band embarked on several headlining tours in support of the album, spanning the United States, Europe, and Australia. These include the Complete Collapse Tour, Ctrl+Alt+Del Tour, EU Tour 2023, and Family Tree Tour. The band also supported
The Used on their Fall 2023 tour. Leading up to the band's tour with The Used, they embarked on a short American headlining tour with
Dead American and TX2 as support. On September 29, 2023, the band released
Complete Collapse (Deluxe Edition), including various acoustic versions of songs from the album and a previously unreleased song, "Don't Let the Party Die," which was also released as a single the same day with an accompanying music video.
Touring, Audiotree EP, and An Ending in Itself (2024–present) On March 26, 2024, the band announced an anniversary tour in support of their second studio album,
Let's Cheers To This, with
Holding Absence and
Teenage Joans providing support. The American leg of the tour concluded with the band performing at
When We Were Young on October 19 and 20. On October 23, 2024, the band collaborated with Audiotree to release
Sleeping With Sirens on Audiotree Live, an
EP featuring live performances of five of the band's songs. On December 3, 2024, Pierce the Veil announced their "I Can't Hear You" tour, with Sleeping With Sirens announced as direct support for the North American leg. In December 2024, the band embarked on a short three-show run in Australia. On February 14, 2025, Kellin Quinn launched a solo project entitled Haunted Mouths with an album,
A Collection of Greetings. In 2026, the band has been confirmed to be making an appearance at multiple festivals, such as
Welcome to Rockville,
Inkcarceration Festival,
Louder Than Life,
Aftershock Festival, and
Warped Tour. On March 17, 2026, the band announced a single titled "An Ending in Itself". The song was released on March 19, 2026, along with a music video. It is their first release after returning to Rise Records. On April 24, 2026, the band released a new single titled "Forever/Always", along with a music video. On the same date, the album
An Ending in Itself was announced, and is set to release on June 12, 2026. ==Musical style==