Added method to wait until sleep function is in reality sleeping

lib/plugins/bed.js

@@ -146,10 +146,25 @@ function inject (bot) {
         }
       }
 
-      await bot.activateBlock(bedBlock)
+      bot.activateBlock(bedBlock)
+
+      await waitUntilSleep()
     }
   }
 
+  async function waitUntilSleep () {
+    return new Promise((resolve, reject) => {
+      const timeoutForSleep = setTimeout(() => {
+        reject(new Error('bot is not sleeping'))
+      }, 3000)
+
+      bot.once('sleep', () => {
+        clearTimeout(timeoutForSleep)
+        resolve()
+      })
+    })
+  }
+
   bot._client.on('game_state_change', (packet) => {
     if (packet.reason === 0) {
       // occurs when you can't spawn in your bed and your spawn point gets reset

test/externalTests/bed.js

@@ -31,7 +31,6 @@ module.exports = () => async (bot) => {
   // Sleep
   assert(!bot.isSleeping)
   await bot.sleep(bot.blockAt(bedPos1))
-  await once(bot, 'sleep')
 
   // Wake
   assert(bot.isSleeping)