{{MusicArticle
| titlejp     =幻想遊戯 ＜眠＞ 3 ～ {{lang|en|Museum of marasy}}
| titlejprom  =Gensō Yūgi <Nemu> 3 ~ Museum of marasy
| titleen     =Fantasy Game <Sleep> 3 ~ Museum of marasy
| group       =[[まらしぃ]]
| groupCat    =まらしぃ
| image       =MRCD-023.jpg
| caption     ='''Cover Art:''' [[Reimu Hakurei]]
| banner      =Marasy_banner.gif
| released    =2017-05-07
| convention  =Reitaisai 14
| catalogno   =MRCD-023
| tracks      =11
| length      =49:39
| website     =[http://www.marasy8.com/html/sound.html Link]
| genre       ={{Genre|Instrumental}}
| illustrator ={{lang|ja|さきの新月}}
| designer    =
| arranger    ={{まらしぃ}}
| lyricist    =
| vocalist    =
| masterer    =
| producer    =
| other_staff =

| description =It is an album featuring piano arranges from ''[[Perfect Cherry Blossom]]'', ''[[Imperishable Night]]'', ''[[Shoot the Bullet]]'', ''[[Mountain of Faith]]'', ''[[Scarlet Weather Rhapsody]]'', ''[[Subterranean Animism]]'', ''[[Ten Desires]]'', ''[[Double Dealing Character]]'', ''[[Legacy of Lunatic Kingdom]]''.

| tracklist   =
* {{Track|01|{{lang|ja|明日ネムの日、ケの昨日}}|04:27}}
** ''Tomorrow is a Day for Sleeping, Yesterday Was Not''
** arrangement: {{lang|ja|まらしぃ}}
** original title: {{lang|ja|明日ハレの日、ケの昨日}}
** source: {{MoF}}

* {{Track|02|{{lang|ja|死霊の寝桜}}|04:20}}
** ''Sleeping Sakura of Dead Spirits''
** arrangement: {{lang|ja|まらしぃ}}
** original title: {{lang|ja|死霊の夜桜}}
** source: {{TD}}

* {{Track|03|{{lang|ja|レトロスリープティブ京都}}|03:56}}
** ''Retro-Sleeptive Kyoto''
** arrangement: {{lang|ja|まらしぃ}}
** original title: {{lang|ja|レトロスペクティブ京都}}
** source: {{StB}}

* {{Track|04|{{lang|ja|昼夜逆転するホイールオブフォーチュン}}|04:48}}
** ''Reversed Day and Night's Wheel of Fortune''
** arrangement: {{lang|ja|まらしぃ}}
** original title: {{lang|ja|逆転するホイールオブフォーチュン}}
** source: {{LoLK}}

* {{Track|05|{{lang|ja|有頂天眠 ～}} Wonderful Dream|05:33}}
** ''Sleeping in Bhavaagra ~ Wonderful Dream''
** arrangement: {{lang|ja|まらしぃ}}
** original title: {{lang|ja|有頂天変　～}} Wonderful Heaven
** source: {{SWR}}

* {{Track|06|{{lang|ja|眠月の竹林}}|04:08}}
** ''Bamboo Forest of the Sleeping Moon''
** arrangement: {{lang|ja|まらしぃ}}
** original title: {{lang|ja|満月の竹林}}
** source: {{DDC}}

* {{Track|07|{{lang|ja|東方眠々夢 ～}} Ancient Sleep|04:29}}
** ''Eastern Sleepy Dream ~ Ancient Sleep''
** arrangement: {{lang|ja|まらしぃ}}
** original title: {{lang|ja|東方妖々夢　～}} Ancient Temple
** source: {{PCB}}

* {{Track|08|{{lang|ja|アルティメットスリープ}}|03:29}}
** ''Ultimate Sleep''
** arrangement: {{lang|ja|まらしぃ}}
** original title: {{lang|ja|アルティメットトゥルース}}
** source: {{PCB}}

* {{Track|09|{{lang|ja|ハルトマンの睡眠少女}}|05:09}}
** ''Hartmann's Sleeping Girl''
** arrangement: {{lang|ja|まらしぃ}}
** original title: {{lang|ja|ハルトマンの妖怪少女}}
** source: {{SA}}

* {{Track|10|{{lang|ja|ネムイアドライブ}}|04:31}}
** ''Sleepy Desire Drive''
** arrangement: {{lang|ja|まらしぃ}}
** original title: {{lang|ja|デザイアドライブ}}
** source: {{TD}}

* {{Track|11|{{lang|ja|少女眠想曲　～}} Dream Battle|04:49}}
** ''Maiden's Capriccio of Sleep ~ Dream Battle''
** arrangement: {{lang|ja|まらしぃ}}
** original title: {{lang|ja|少女綺想曲　～}} Dream Battle
** source: {{IN}}

}}