diff --git a/GuardHelpers.php b/GuardHelpers.php
new file mode 100644
index 000000000..01e6cbd8e
--- /dev/null
+++ b/GuardHelpers.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace Illuminate\Auth;
+
+use Illuminate\Contracts\Auth\Authenticatable;
+
+/**
+ * These methods are typically the same across all guards.
+ */
+trait GuardHelpers
+{
+    /**
+     * The currently authenticated user.
+     *
+     * @var \Illuminate\Contracts\Auth\Authenticatable
+     */
+    protected $user;
+
+    /**
+     * The user provider implementation.
+     *
+     * @var \Illuminate\Contracts\Auth\UserProvider
+     */
+    protected $provider;
+
+    /**
+     * Determine if the current user is authenticated.
+     *
+     * @return bool
+     */
+    public function check()
+    {
+        return ! is_null($this->user());
+    }
+
+    /**
+     * Determine if the current user is a guest.
+     *
+     * @return bool
+     */
+    public function guest()
+    {
+        return ! $this->check();
+    }
+
+    /**
+     * Get the ID for the currently authenticated user.
+     *
+     * @return int|null
+     */
+    public function id()
+    {
+        if ($this->user()) {
+            return $this->user()->getAuthIdentifier();
+        }
+    }
+
+    /**
+     * Set the current user.
+     *
+     * @param  \Illuminate\Contracts\Auth\Authenticatable  $user
+     * @return void
+     */
+    public function setUser(Authenticatable $user)
+    {
+        $this->user = $user;
+    }
+}
diff --git a/SessionGuard.php b/SessionGuard.php
index c6efe47f7..52747a307 100644
--- a/SessionGuard.php
+++ b/SessionGuard.php
@@ -9,13 +9,15 @@
 use Illuminate\Contracts\Auth\StatefulGuard;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
+use Illuminate\Contracts\Auth\Authenticatable;
 use Illuminate\Contracts\Auth\SupportsBasicAuth;
 use Illuminate\Contracts\Cookie\QueueingFactory as CookieJar;
-use Illuminate\Contracts\Auth\Authenticatable as UserContract;
 use Symfony\Component\HttpFoundation\Session\SessionInterface;
 
 class SessionGuard implements StatefulGuard, SupportsBasicAuth
 {
+    use GuardHelpers;
+
     /**
      * The name of the Guard. Typically "session".
      *
@@ -25,13 +27,6 @@ class SessionGuard implements StatefulGuard, SupportsBasicAuth
      */
     protected $name;
 
-    /**
-     * The currently authenticated user.
-     *
-     * @var \Illuminate\Contracts\Auth\Authenticatable
-     */
-    protected $user;
-
     /**
      * The user we last attempted to retrieve.
      *
@@ -46,13 +41,6 @@ class SessionGuard implements StatefulGuard, SupportsBasicAuth
      */
     protected $viaRemember = false;
 
-    /**
-     * The user provider implementation.
-     *
-     * @var \Illuminate\Contracts\Auth\UserProvider
-     */
-    protected $provider;
-
     /**
      * The session used by the guard.
      *
@@ -115,26 +103,6 @@ public function __construct($name,
         $this->provider = $provider;
     }
 
-    /**
-     * Determine if the current user is authenticated.
-     *
-     * @return bool
-     */
-    public function check()
-    {
-        return ! is_null($this->user());
-    }
-
-    /**
-     * Determine if the current user is a guest.
-     *
-     * @return bool
-     */
-    public function guest()
-    {
-        return ! $this->check();
-    }
-
     /**
      * Get the currently authenticated user.
      *
@@ -440,7 +408,7 @@ public function attempting($callback)
      * @param  bool  $remember
      * @return void
      */
-    public function login(UserContract $user, $remember = false)
+    public function login(Authenticatable $user, $remember = false)
     {
         $this->updateSession($user->getAuthIdentifier());
 
@@ -527,7 +495,7 @@ public function onceUsingId($id)
      * @param  \Illuminate\Contracts\Auth\Authenticatable  $user
      * @return void
      */
-    protected function queueRecallerCookie(UserContract $user)
+    protected function queueRecallerCookie(Authenticatable $user)
     {
         $value = $user->getAuthIdentifier().'|'.$user->getRememberToken();
 
@@ -597,7 +565,7 @@ protected function clearUserDataFromStorage()
      * @param  \Illuminate\Contracts\Auth\Authenticatable  $user
      * @return void
      */
-    protected function refreshRememberToken(UserContract $user)
+    protected function refreshRememberToken(Authenticatable $user)
     {
         $user->setRememberToken($token = Str::random(60));
 
@@ -610,7 +578,7 @@ protected function refreshRememberToken(UserContract $user)
      * @param  \Illuminate\Contracts\Auth\Authenticatable  $user
      * @return void
      */
-    protected function createRememberTokenIfDoesntExist(UserContract $user)
+    protected function createRememberTokenIfDoesntExist(Authenticatable $user)
     {
         if (empty($user->getRememberToken())) {
             $this->refreshRememberToken($user);
@@ -712,7 +680,7 @@ public function getUser()
      * @param  \Illuminate\Contracts\Auth\Authenticatable  $user
      * @return void
      */
-    public function setUser(UserContract $user)
+    public function setUser(Authenticatable $user)
     {
         $this->user = $user;
 
diff --git a/TokenGuard.php b/TokenGuard.php
index 923933303..63012f8ad 100644
--- a/TokenGuard.php
+++ b/TokenGuard.php
@@ -10,19 +10,7 @@
 
 class TokenGuard implements Guard
 {
-    /**
-     * The currently authenticated user.
-     *
-     * @var \Illuminate\Contracts\Auth\Authenticatable
-     */
-    protected $user;
-
-    /**
-     * The user provider implementation.
-     *
-     * @var \Illuminate\Contracts\Auth\UserProvider
-     */
-    protected $provider;
+    use GuardHelpers;
 
     /**
      * The request instance.
@@ -65,26 +53,6 @@ public function __construct(UserProvider $provider,
         $this->storageKey = $storageKey;
     }
 
-    /**
-     * Determine if the current user is authenticated.
-     *
-     * @return bool
-     */
-    public function check()
-    {
-        return ! is_null($this->user());
-    }
-
-    /**
-     * Determine if the current user is a guest.
-     *
-     * @return bool
-     */
-    public function guest()
-    {
-        return ! $this->check();
-    }
-
     /**
      * Get the currently authenticated user.
      *
@@ -126,28 +94,12 @@ protected function getTokenForRequest()
         }
 
         if (empty($token)) {
-            $header = $this->request->header('Authorization');
-
-            if (Str::startsWith($header, 'Bearer ')) {
-                $token = Str::substr($header, 7);
-            }
+            $token = $this->request->bearerToken();
         }
 
         return $token;
     }
 
-    /**
-     * Get the ID for the currently authenticated user.
-     *
-     * @return int|null
-     */
-    public function id()
-    {
-        if ($this->user()) {
-            return $this->user()->getAuthIdentifier();
-        }
-    }
-
     /**
      * Validate a user's credentials.
      *
@@ -177,17 +129,6 @@ public function logout()
         //
     }
 
-    /**
-     * Set the current user.
-     *
-     * @param  \Illuminate\Contracts\Auth\Authenticatable  $user
-     * @return void
-     */
-    public function setUser(Authenticatable $user)
-    {
-        $this->user = $user;
-    }
-
     /**
      * Set the current request instance.
      *