If blocks are placed 1 or 2 meters above the players head the player sleeps outside of the bed. See image.

---- Minecraft Crash Report ----
// I just don't know what went wrong

Time: 5/10/16 8:18 PM
Description: Manually triggered debug crash

java.lang.Throwable
at bcd.az(SourceFile:1701)
at bcd.t(SourceFile:1622)
at bcd.av(SourceFile:969)
at bcd.a(SourceFile:399)
at net.minecraft.client.main.Main.main(SourceFile:124)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

– Head –
Thread: Client thread
Stacktrace:
at bcd.az(SourceFile:1701)

– Affected level –
Details:
Level name: MpServer
All players: 1 total; [bmr['Bubzthetroll'/27033, l='MpServer', x=127.50, y=4.00, z=345.50]]
Chunk stats: MultiplayerChunkCache: 1054, 1054
Level seed: 0
Level generator: ID 01 - flat, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (49,4,189), Chunk: (at 1,0,13 in 3,11; contains blocks 48,0,176 to 63,255,191), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 814534 game time, 24260 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 40 total; [vy['Cow'/27010, l='MpServer', x=103.82, y=4.00, z=279.73], vy['Cow'/27011, l='MpServer', x=106.55, y=4.00, z=298.17], vy['Cow'/27012, l='MpServer', x=99.45, y=9.12, z=313.52], vy['Cow'/27013, l='MpServer', x=97.45, y=7.00, z=313.45], vy['Cow'/27014, l='MpServer', x=97.45, y=7.00, z=313.45], wc['Pig'/27015, l='MpServer', x=91.72, y=4.00, z=379.35], vy['Cow'/27018, l='MpServer', x=114.63, y=4.00, z=285.84], vy['Cow'/27022, l='MpServer', x=136.63, y=4.00, z=293.84], wc['Pig'/27023, l='MpServer', x=140.24, y=4.00, z=288.77], wc['Pig'/27024, l='MpServer', x=141.27, y=4.00, z=306.69], vy['Cow'/27025, l='MpServer', x=147.23, y=4.00, z=303.83], vy['Cow'/27028, l='MpServer', x=150.18, y=4.00, z=295.57], wc['Pig'/27029, l='MpServer', x=154.27, y=4.00, z=307.35], vy['Cow'/27030, l='MpServer', x=149.17, y=4.00, z=336.66], vy['Cow'/27031, l='MpServer', x=157.14, y=4.00, z=322.29], vy['Cow'/27032, l='MpServer', x=161.16, y=4.00, z=314.34], vx['Chicken'/27038, l='MpServer', x=56.71, y=4.00, z=412.84], bmr['Bubzthetroll'/27033, l='MpServer', x=127.50, y=4.00, z=345.50], we['Sheep'/27041, l='MpServer', x=71.58, y=4.00, z=386.38], we['Sheep'/27042, l='MpServer', x=75.78, y=4.00, z=394.57], vx['Chicken'/27043, l='MpServer', x=77.35, y=4.00, z=415.34], vx['Chicken'/27044, l='MpServer', x=75.10, y=4.00, z=422.12], vy['Cow'/27046, l='MpServer', x=90.78, y=4.00, z=386.55], we['Sheep'/27047, l='MpServer', x=109.26, y=4.00, z=396.41], vy['Cow'/27048, l='MpServer', x=118.45, y=4.00, z=388.82], yd['item.item.egg'/1002426, l='MpServer', x=73.98, y=4.00, z=356.50], wf['Snow Golem'/26984, l='MpServer', x=61.59, y=4.00, z=346.20], vy['Cow'/26987, l='MpServer', x=64.58, y=4.00, z=273.18], vy['Cow'/26988, l='MpServer', x=73.48, y=2.00, z=271.80], vy['Cow'/26989, l='MpServer', x=71.45, y=4.00, z=277.81], vy['Cow'/26990, l='MpServer', x=66.21, y=4.00, z=305.87], wc['Pig'/26991, l='MpServer', x=77.72, y=4.00, z=334.23], vx['Chicken'/26992, l='MpServer', x=73.12, y=4.00, z=357.32], vy['Cow'/27001, l='MpServer', x=85.41, y=4.00, z=277.20], vy['Cow'/27002, l='MpServer', x=85.55, y=4.43, z=302.55], vy['Cow'/27003, l='MpServer', x=85.45, y=4.38, z=302.45], vy['Cow'/27004, l='MpServer', x=85.45, y=4.44, z=302.45], vy['Cow'/27005, l='MpServer', x=85.55, y=4.42, z=302.55], vy['Cow'/27006, l='MpServer', x=90.81, y=4.00, z=311.36], vy['Cow'/27007, l='MpServer', x=86.86, y=4.00, z=355.71]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at bks.a(SourceFile:365)
at bcd.b(SourceFile:2521)
at bcd.a(SourceFile:408)
at net.minecraft.client.main.Main.main(SourceFile:124)

– System Details –
Details:
Minecraft Version: 1.9.4
Operating System: Mac OS X (x86_64) version 10.11.4
Java Version: 1.8.0_74, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 213774808 bytes (203 MB) / 531136512 bytes (506 MB) up to 2134114304 bytes (2035 MB)
JVM Flags: 5 total; -Xmx2G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 12, tallocated: 94
Launched Version: 1.9.4
LWJGL: 2.9.2
OpenGL: NVIDIA GeForce GT 650M OpenGL Engine GL version 2.1 NVIDIA-10.10.5.2 310.42.25f01, NVIDIA Corporation
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: Yes
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: Better Shield by zZzZOBRA 2, ClearGlass1.9
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: bcd$7@1e2cf7f9